1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Triss [41]
1 year ago
11

Environmental Effects Summary

Chemistry
1 answer:
Alex17521 [72]1 year ago
5 0

River samples may evidence problems with the water treatment plant because it may contain an excessive amount of certain substances which are filtered during this procedure.

<h3>What is a water treatment plant?</h3>

A water treatment plant is a place where wastewater from a city is processed and purified in order to obtain potable water.

Water treatment procedure generally involves the collection, chemical substance addition, filtration, and disinfection.

Any type of problem in these steps can be evidenced by taking a sample of the water after treatment.

In conclusion, river samples evidence problems due to an excessive amount of certain substances which are filtered during this procedure.

Learn more about water treatment here:

brainly.com/question/13348717

#SPJ1

You might be interested in
What is the pH at the equivalence point in the titration of a 25.7 mL sample of a 0.370 M aqueous nitrous acid solution with a 0
expeople1 [14]

Answer:

pH = 8.24

Explanation:

Nitrous acid (HNO₂) reacts with KOH, thus:

HNO₂ + KOH → KNO₂ + H₂O

Moles of HNO₂ are:

0.0257mL ₓ (0.370mol / L) = 0.00951moles.

In equivalence point, the complete moles of nitrous acid reacts with KOH producing potassium nitrite. There are needed:

0.00951mol ₓ (1L / 0.491mol) = 0.01937L ≡ 19.4mL of 0.491M KOH to reach equivalence point.

Total volume in equivalence point is: 19.4mL + 25.7mL = <em>45.1mL</em>

Potassium nitrite is in equilibrium with water, thus:

NO₂⁻ + H₂O ⇄ HNO₂ + OH⁻

Where equilibrium constant, Kb, is defined as:

Kb = 1.41x10⁻¹¹ = \frac{[OH^-][HNO_2]}{[NO_2]}

In equilibrium, molarity of each compound are:

[NO₂⁻]: 0.00951mol/0.00451L - X = 0.211M - X

[HNO₂]: X

[OH⁻]: X

<em>Where X is reaction coordinate</em>

Replacing in Kb:

1.41x10⁻¹¹ = \frac{[X][X]}{[0.211 -X]}

0 = X² + 1.41x10⁻¹¹X - 2.97x10⁻¹²

Solving for X:

X = -1.72x10⁻⁶ <em>FALSE ANSWER. There is no negative concentrations.</em>

X = 1.72x10⁻⁶. <em>Right answer.</em>

That means:

[OH⁻]: 1.72x10⁻⁶M

As pOH is -log [OH⁻] and pH = 14-pOH:

pOH = 5.76; <em>pH = 8.24</em>

3 0
3 years ago
The reaction between iron(II) oxide and carbon monoxide produces iron and carbon dioxide. How many moles of iron can be obtained
My name is Ann [436]

Answer:

4.75 moles of Fe

Explanation:

We'll begin by writing the balanced equation for the reaction. This is given below:

FeO + CO —> Fe + CO2

Now, we can determine the number of mole of iron, Fe produced by the reaction of 4.75 mol of FeO with excess CO as follow:

From the balanced equation above,

1 mole of FeO reacted to produce 1 mole of Fe.

Therefore, 4.75 moles of FeO will also react to produce 4.75 moles of Fe.

Therefore, 4.75 moles of Fe is produced.

4 0
2 years ago
Empirical formula for 70.9% K and 29.1% S
aev [14]
I dont know sorry but good luck i know u can past
4 0
3 years ago
train travel from hong kong to beijing it traveled at an average speed of 160 km/m in the first 4 hours. after that it traveled
Nonamiya [84]

Answer:

7 hours

Explanation: step 1. 160x4=640

step 2. 1180-640=540

step 3. 540÷180=3

step 4. 3+4=7

5 0
3 years ago
Read 2 more answers
Hi everyone how is your guys day huh I believe good right
Kisachek [45]
H, my day has been alright, how’s yours?
7 0
2 years ago
Other questions:
  • Which of the following adaptations would you expect tofind in an animal in the alpine biome, but not in the taiga
    8·2 answers
  • Show a numerical formula for the dilute in the solution
    11·1 answer
  • Which of the following would most likely contain a fossil?
    13·1 answer
  • Materials
    5·1 answer
  • Another metal phosphate is cobalt phosphate. It will behave similar to calcium phosphate in an acid solution. What is the net io
    5·2 answers
  • Penicillin N is an antibacterial agent that contains 8.92% sulphur by mass.Which could be the molar mass of Penicillin N? a)256g
    14·1 answer
  • Which of the following statements are true?
    15·1 answer
  • What is the ion symbol for Xenon ?
    9·1 answer
  • What is used to contain an acid spill and what are the characteristics of them?​
    8·1 answer
  • 3. Rb(CN) (aq) + Znl, (aq) →<br> What is the production
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!